Results 261 to 270 of about 34,287 (298)

Calcium Logistics in the Laying Hen

The Journal of Nutrition, 1987
The hourly changes in the Ca2+ content of various physiological compartments in relation to shell formation has been calculated for the domestic hen throughout a 4-d ovulatory sequence. These calculations consider the circadian rhythm in Ca2+ intake when the hen is fed a complete feed or a diet containing oyster shell, the effect of the stage of the ...
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Cannibalism in laying hens

Veterinary Record, 1992
P E, Curtis, N W, Marsh
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The laying hen and bone fractures

Veterinary Record, 2011
THE laying hen has undergone considerable artificial selection pressure over the past century, to increase its egg output in order to provide a protein-rich food source for humans. While its wild counterpart will lay just five to six eggs per breeding season, modern breeds will lay in excess of 300 eggs per year (Lever 2011). With increased egg output,
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Vitamin e hypervitaminosis in laying hens

Archiv für Tierernaehrung, 1999
The aim of this investigation was to contribute to the problem of overdosing vitamin E. A total of 80 laying hens, divided into 5 groups, were fed diets supplemented with 0, 100, 1000, 10,000 and 20,000 mg/kg vitamin E over a period of 20 weeks within two brooding tests. Laying performance and hatching parameters were registered.
A, Sünder, I, Halle, G, Flachowsky
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Play in Laying Hens

Dataset for the manuscript 'Fowl play: Do age and aviary design affect play in cage-free laying hens?' Authors: Xiaowen Ma (马晓文), Vrinda Ambike, Valentina Bongiorno, Jacquelyn A. Jacobs, Janice C. Swanson, Tina M. Widowski, Janice M. Siegford The project examined play behavior in cage-free laying hens focusing on effects of age (17-32 weeks of age ...
Ma, Xiaowen, Siegford, Janice
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Corticosteroids in Laying Hens

1980
In the literature adrenal hormones have often been related to stress and sometimes equalised as stress hormones.
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Tetrachlorvinphos metabolism in laying hens

Journal of Agricultural and Food Chemistry, 1981
M H, Akhtar, T S, Foster
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Hens: Egg-laying

Notes and Queries, 1906
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Fatty acids profile, cholesterol level and quality of table eggs from hens fed with the addition of linseed and soybean oil

Food Chemistry, 2021
Justyna Batkowska, Kamil Drabik, Antoni Brodacki   +2 more
exaly  

Black soldier fly larvae meal and fat can completely replace soybean cake and oil in diets for laying hens

Poultry Science, 2021
Maike Heuel, Christoph Sandrock, Florian Leiber   +2 more
exaly